Replacement Harley Davidson batteries. Low priced top quality AGM sealed maintenance-free batteries. IMPORTANT: Always check that the battery dimensions match your old Harley Davidson battery or will at least fit your battery compartment before you place your order. If you have a lead-acid type battery and wish to upgrade to a more powerful sealed maintenance-free battery: download the Motobatt Battery Application Guide, find your ride, copy the number marked in red and then paste that red number into our search box.